Решите примеры : 5*5 4*5 3*5 1*5 2*5 5*6 5*7 5*9 5*0 5*8 5*7 456*890 435*768 567+890 230-157

Помогите сделать=) Put the correct prepositions.

1) When we came to school we saw a wide school yard ________ it and a sports graund _______ it.

2) There are several class - rooms ________ the graund floor.

3) Some portraits __________ famous writers were _______ the walls of the office.

4) Every pupil learns one _________ foreign languages.

5) English is the most widespread language _________ the world.

Пожалуйста=)

Cколько целых чисел расположено между числом ( -корень из7)и значением выражения (корень из 7 -2)^2

выпишите материки,открытые в XV-XIX веках:
________________________________________________________________
 Австралия,Африка,Северная Аримерика,Антарктида,Евразия,Южная Америка. 

Use the words in brackets to complete the sentences ( The Present Simple or the Present Continuous) Раскройте скобки в подходящем времени.                                                    1. Look! Little Johnny (wash) his bike. He is funny, isn’t he? 2. Little Johnny (wash) his bike every Sunday. 3. I (learn) the new words now. 4. I (do) my homework at the moment. 5. I (do) my homework every day. 6. Mary (be) busy. She (buy) a present for her sister. 7. Mary always (buy) presents for her little sister. 8. He (love) his mother.